Educational device



March 1940- E. R. CHAMPION ET AL 2,192,257

EDUCATIONAL DEVICE Filed 001;. 24, 1958 2 SheetsSheet 1 44 54 5 1a 86/FQ 4 E TOTAL AMOUNT YOU HAVE PAID "4-. /5(

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CASH IF YOU DIE OR BECOME DISABLED PAID -UP VALUE AMOUNT OF sscum-rrwm-mmso MONTHLY INCOME FOR IO YEAR8-"/52 IE] To-rm. RETURN 6 I MONTHLYINCOME FOR l5 YEARS TOTAL Rc'ruRN [E MONTHLY INCOME FOR YEARS /54 TOTALRETURN [:15] MONTHLY mrsses'r mcoms -m1'usms PRINCIPAL I 3 l4 I6 V TOTAL4loo PAIDI casnvaw: |z4zs AFren YeARslnoAbmPAYMENT5) R5 MONTMLYINCDM! 73FoR zoYEARs I m/ 5 Z-*' Tdl'AL 72.00 mun YRS cnsn VALUE laces AFTfiRvsmsluonmzmvmsm's) IMONI'IILYIICOME I06 FQK Z0 YEARS lz- 77 n 3 /6Z Ton36m: mom as vnuns 220:4 AFTER YEARslNoAmPAYMEm-s) mum mom: :23 FOR 20YEARS Z17 IO ToTAL 12 MIME! cnsu VALUE Z5306 AFTER YEARS (m ADD.mYMsu-rs) SYRS. MDNTHLYmcomE I49 FOR 20 YEARS zso lo Fig.2 06m R.CHAMPION GLENN J- WOREL- ATTORNEYS 27 INVENTOR$ March 1940- E. R.CHAMPION ET AL 2,192,257

EDUCATIONAL DEVI CE Filed Oct. 24, 193B 2 Sheets-Sheet 2 I80 I80 7 /g 581 l 10/ 00 l l 5/ Q Q Q 6 EDGAR R. CHAMPION GLENN J. WOHEL T 8 2 B Wail,6 M, WW b45141,

ATTORNEYS Patented Mans, 1940 UNITED STATES PATENT OFFICE 2,192,257EDUCATIONAL DEVICE Application October 24, 1938, Serial No. 236,728

Claims.

The present invention relates to an apparatus for graphically displayinga large amount or data such as that representing a planned accumulationof wealth over a period in the human life 5 span, and other datarepresenting payment options for such plans. The apparatus isparticularly adapted for the-use of representatives of insurance andinvestment companies, who constantly require reference to computed datain explalning various programs to their clients.

It is an object of the present invention to provide a means for readilyand attractively displaying computed data, and particularly fordisplaying such data graphically.

It is a further object of the invention to provide an apparatus havingan opening for displaying data.

It is also an object to provide a double display cabinet having opposedopenings each of which is shaped to similate a theatre opening forsimultaneously displaying related data.

It is a further object to provide a portable display container having aplurality of data display openings, which is mounted for ready rotationupon a base, so as to facilitate display first of one and then ofanother of said openings.

It is also an object of the invention to provide a mechanism forsimultaneously moving a web across a pair of oppositely positioneddisplay openings so as simultaneously to present data displayingopenings in said web at various positions in said openings.

It is a further object of the invention to provide a mechanism forsimultaneously reeling a pair of data-displaying webs from full reels toempty reels while simultaneously maintaining said webs tensioned.

It is a further object of the invention to provide a pair of elongateddata displaying webs 40 behind a pair of display openings, and a windingreel for each end of each web, together with mechanism for maintainingsaid webs in predetermined conditiofi of winding with respect to eachother throughout the winding range of said webs, so that when certaindata is displayed through a predetermined position, correlated data onthe other web will simultaneously be positioned to be displayed at apredetermined position. a

It is a further object of the invention to provide display apparatusincluding a transversely movable data-displaying web positioned behindan opening in said device, together with a second transversely movableweb adjacent said opening for positioning in correspondence with saidwebs.

Other and further objects are those inherent in the means and apparatusherein illustrated, described and claimed.

The invention is illustrated with reference to the drawings in which IFigure 1 is a front elevation view of the device, partly broken away.

Figure 2 is a rear elevation view of the device shown in Figure 1.

Figure 3 is a plan view of the device.

Figure 4 is a sectional view in the direction of the arrows and alongthe line 4-4 of Figure 1.

Figure 5 is an enlarged fragmentary view in section along the lines 5-5of Figure 3.

Figure 6 is an enlarged view in section of the operating mechanism asviewed along the lines 6-6 of Figure 4.

Figure 7 is a sectional view along the lines 1-! of Figure 6.

Figure 8 is an enlarged fragmentary sectional view along the lines 8-8of Figure 1.

Figure 9 is an enlarged detail partly in section along the lines 9-9 ofFigure '7.

Throughout the drawings like numerals indicate corresponding parts.

The mechanism consists of a case generally designated I which ispreferably of light weight cast metal, such as aluminum alloy ormagnesium alloy, or molded resinous material. The case has the generalconfiguration of a closed folding camera although as usually constructedit is slightly larger than usual hand cameras. The case consists of anupper portion generally designated 2, having a front wall 3 and a rearwall 4 and rounded end walls 5 and I5. The top I of the case is formedintegrally with the side walls as shown in Figure 5. The sidewalls 3 and4 are provided with windows it and -ll,-respectively, which arepreferably shaped so as to have the aspect of a theatre stage inminiature. Thus the windows are provided with a narrow molding I! ateach side and a curved molding l3 at the top and with a bottom moldingll, all of which co operate to give the appearance of a stage. Ifdesired, the outer surface of the box I may be covered with leather orartificial leather or with enamel finishes.

At the bottom edge It of the upper part 2 of the container, and equallydistant from the side walls there is provided a cross-frame 20 (seeFigure 6) which is attached to the front wall 3 and rear wall 4 by meansof screws 2| and 22, respectively.

The bottom 01 the case is formed by a cover plate 25 which is likewiseof cast metal or other 86 ,relatively strong material. The cover plateis pivoted to the cross-frame member 28 by means of pivot screw 28,there being a large diameter, thin washer 21 between the cover plate 25and cross-frame 28 so as to facilitate the pivoting of the upper portion2 of the case relative to the bottom plate 25.

The lower edges 28 and 88 of the rounded end walls 5 and 8 are notchedas illustrated at 8| in Figure l. The notches are provided to receive aspring detent 82 which is mounted at one end of the base plate 25. Thedetent 82 protrudes as shown at 38 in Figures 1 and 3 and may bedepressed to release the upper portion 2 of the case, for rotation withrespect to the base.

The front central portion of the base is provided with a slot shown inthe dotted lines in Figure 6 which receives a tilt frame 88 which ispreferably made of relatively rigid steel wire. The frame 85 may beretracted into the slot 85 or moved outwardly and then pivoteddownwardly so as to provide a slight backward tilt to the whole casewhen the latter is placed on a fiat surface such as a desk or table.This expedient facilitates reading of the printed matter through windowsI8 and II.

The data displaying mechanism of the case comprises an outer web 48 andinnerwebs 18 and 88. The outer web 48' is carried by a plurality ofvertically disposed rolls 4|, 42, 43 and 44. As is clearly illustratedin Figure 4 the rolls M and 42 are positioned adjacent the rounded endwall 5 of the casing and rolls 43 and 44 are positioned adjacent endwall 5. The web 48 is strung over rolls 4| and 43 and is accordinglymaintained closely adjacent window II. After passing over roll 43 theweb 48 then passes over a small take-up roll 45 which is positionedslightly to the left of center and along the center line of the case asshown in Figure 4. After passing over the roll 45 the web 48 continuesover roll 44 and thence closely adjacent window I8 to roll 42. Afterpassing over roll 42 the web 48 traverses another small idler roll 48and thence back to roll 4|. It will thus be seen that web 48 iscontinuous.

Within the housing there is mounted an inner frame member 58 which isparallel to and spaced slightly above, the base plate 25 (see Figure 6)and an upper frame member 58A. The rolls 4|, 42, 43 and 44 are pivotedupon shafts 5|, 52, 58 and 54, respectively. The lower ends of each ofthe shafts are journaled in plate 58 and the upper ends in upper framemember 58A. The upper ends of shafts 5| and 54 protrude through theupper surface 1 and are provided with knobs 58 and 58, respectively.Shafts 52 and 58 are pivoted in the upper frame member 58A but do notprotrude therethrough.

The rolls 45 and 45 likewise are pivoted on the inner frame 58 and theupper frame member 58A. Roll 45 is pivoted in slots running lengthwiseof the plate 58, one of the slots being shown at 68 in Figure 4. Asimilar slot is provided in the upper frame member 58A. A spring 8.I isprovided at each end of the roll 45 so asto force it to the right, asshown in Figure 4. In this way the endless web 48 is maintained taut.

The irmer web 18 which is positioned adjacent window II and behind theouter web 48 has a length which may be from 10 to 15 times as much asthe overall length of the case depending upon the amount of data to bedisplayed. One end of web 18 is wound upon roll H which is carried byshaft 12. From. roll H the web 18 runs to an idler roll 15, as shown inFigure 4 and thence parallel to outer web 48 to a second idler roll I8.After passing over idler roll 18 the web 18 continues to a secondwinding roll 18 which is mounted upon shaft 18. The winding and idlerrolls 5 are carried by shafts which are journaled at their lower ends inthe inner frame 58 and at their upper ends in the upper frame member58A.

At the opposite side of the casing there is a similar web 88, one end ofwhich is wound on 10 winding roll 8|. Winding roll 8| is carried by ashaft 82, as will be explained in greater detail. From the winding roll82 the web ,88 passes over an idler roll 85 and thence parallel to web48 to another. idler roll 88. After passing over 15 the latter the web88 continues to another winding roll 88 which is journaled on shaft 88.

At the center of the case there is an operating shaft I88 which extendsupwardly from the frame 28 and through the top 1 of the case. The upperprotruding end of shaft I88 is provided with an operating knob I8I.

Referring now to Figures 4, 6, 7 and 9 it will be seen that shafts 12and 88 extend downwardly to the upper surface of plate 28 and each of 25these shafts is provided with a pinion. The pinion attached to shaft 12is numbered I85 and is illustrated in Figure 6. The pinion attached toshaft 89 is not illustrated in Figure 6 but is shown in the dotted linesat I88 in Figure 7. Pinions 90 I85 and I85 are sized so as to engage thelarge gear wheel I81 which is journaled for free rotation on operatingshaft I88. This gear wheel is shown in Figures 6 and 9.

Roll shafts 82 and 19 extend below the inner 35 frame 58 justsufficiently to carry pinions I I5 and IIS-respectively. Pinion II5which is carried at the bottom of shaft 82 is illustrated in Figures 6and 7. Pinion II5 which is carried at the bottom of shaft 18 isillustrated only in Figure 7. 40 Pinions H5 and IIS are of the same sizeand engage a large gear I" which is identical in size with gear I81.

Gears I81 and I" are both joumaled for free rotation upon operatingshaftI88 as shown in 45 Figure 9 and are spaced apart by collar I24. GearsI81 and 1 are held in assembled relation upon shaft I88 by a retainingcollar II8 which is seated in a groove in the shaft.

In this connection it is noted that Figure 7 is go a sectional viewlooking upwardly along the lines 1-1 of Figure 6 and pinions I85 and I88accordingly do not show in Figure .7. However, their position withreference to shafts 12 and 88, respectively, is illustrated by thedotted lines. It 5 is understood, of course, that pinions I85 and I86mesh with lower gear I81 and that pinions H5 and H8 mesh with upper gearH1.

The upper surface of gear I81 is provided with a plurality of notches H8and the lower surface of gear H1 is provided with a plurality of similaroppositely disposed notches I28. The notches H8 and notches I28 areformed to be engaged by a collar I22 which is provided with similarcooperating notches in its upper and lower surfaces, as shown in Figure6, fitted so as to be slidable upwardly and downwardly on spacing collarI24. Collar I22 is provided with slanting slots I25 (see Figures 7 and9) through which a. drive pin I28 projects. The drive pin is fixed tothe shaft and 70 collar I24 and hence as the shaft I88 is rotated in aclockwise direction shown by the arrow I88 of Figure 3 the collar I22will be forced down until the notches in its lower surface engagenotches I I8 of gear I81 and thereafter the gear II I01 will be rotatedwith the collar and shaft I00. Likewise when the shaft I is rotated inthe direction of arrow I8I of Figure 3 the eflect of pin I26 uponnotches I25 will be to force the collar I22 upwardly into engagementwith the notches I20 in the upper surface of gear H1 at which time thegear II1 will rotate with collar I22 and shaft I00.

As gear H1 is thus rotated by shaft I00, gears H and H6 will be turnedand shafts 82 and 18 which carry rolls 8I and 18, respectively, willlikewise be rotated in a direction to wind webs and 80, respectively,upon the rolls. At the same time due to the tension in webs 10 and 80they will be unwound from rolls 88 and H, respectively and the motion ofthese rolls will be maintained in synchronism due to the intergearingeffect of pinions I05 and I06 upon gear I01. Hence the webs 10' and 80will always be maintained in exactly the same position with respect tothe other. Stated another way, when web 10 has been given a givenincrement of movement, a similar increment of movement will have takenplace on web 80.

Likewise when the shaft I00 is rotated by knob IOI in the direction ofarrow I3I and the collar I22 is clutched into driving engagement withgear I01 gears I05 and I06 will be rotated and shafts 12 and 88 uponwhich these gears are respectively mounted will accordingly be turned,carrying with them rolls H and 88 in a direction to wind webs 80 and 10.At this time rolls 18 and 8| run idle as the webs 80 and 10 are unwoundtherefrom but during this idle running rolls 18 and M are at all timesunwound equally due to the intergearing effect of large gear II1 uponpinions H6 and H5, respectively.

Referring now to Figures 1 and 2, it will be seen that the outer web 40of the device is provided with a plurality of cut-out openings I50 inthe portion of the web which is normally adjacent the window I0 and witha plurality of cut-outs I60 in that portion of the web which is normallyadjacent window II. It is understood, of course, that these portions ofthe web 40 having the cut-outs, may be rotated out of sight of windowsI0 and II, respectively and advertising or other matter printed upon theweb 40 rotated into sight of windows I0 and II by simply rotating knob58 or knob 58, the cut-out portions of web 40 then being stored adjacentidler rolls 45 and 48.

Opposite the cut-outs I50 there are designations, as shown at I5I andI52 and adjacent cutouts I60 there are designations I6I and I62. As willbe apparent these designations relate to the particular businesscontract being explained.

Upon web'10, which as explained above, is

' from ten to fifteen times as long as the overall length of the case,there are printed groups of calculated data which are spaced so as to bevisible through cut-outs I50 when the web 80 is drawn adjacent thecut-outs. Any desired number of groups of computed data may be includedon web 80 and the number of columns of figures in a group may be variedin accordance with the data to be explained. Thus in Figure 1 there areillustrated two columns of figures I53 and I54 having to do with aninvestment contract.

On web 10 there are printed corresponding groups of figures relating tovarious specifications of the contract. The positions of the groups offigures which are printed on web 10 and the cut-outs of web 40 and theposition of the groups of figures of the web 80 are related so that asthe group of figures I68I54 is visible through cut-outs I50,corresponding figures will be visible at I68 and I84 through cut-outsI60.

At the base of window I0 there is provided a slide-way generallydesignated I10 which has a curved-over upper lip I1I and a lower grooveI12 (see Figure 6). The slide-way extends not only in front of window I0but around each curved end of the case as illustrated at 118 in Figure8. The member I14 in this illustration serves to define the slidegroove, but may if desired be a downwardly turned fiange on inner framemember 50. Mounted in the slide there is provided a tape of Celluloid orother similar material which is somewhat flexible and yet sufficientlyrigid to be propelled by means of knob I15 attached at approximately themiddle of the tape. The tape I10 is provided with a scale ofdesignations I16 running from 0 to 75, of which that portion from 0 to50 is illustrated in Figure 1. These designations may represent the lifespan of an individual, where the apparatus is used to explain a longterm investment or insurance policy.

In the top of the casing, as shown in Figures 3 and 5, there areprovided a plurality of datadlsplaying members generally designated I80.These are identical in construction except for the data therebydisplayed. Each data-display consists of a main rectangular opening I8I,a smaller rectangular opening I82, and a round opening I88 in the toppart 1 of the case. Adjacent these openings is a pair of openings I84through which knurled wheels, generally designated I85 and I86 project.One of the knurled wheels is shown in Figure 5 and consists of an outerrace I81 which rides upon an inner hub I88. The hub is cut away to forman arcuate wedge-shaped slot I88. Within the slot there is positioned aball I80 which is urged toward the narrow end of the slot by spring I8I.The hub I88 is carried on shaft I82 which is in turn mounted upon aframe I83. One end of a datadisplaying web I81 is attached to shaft I82.

The wheel I85 which is similarly constructed, drives shaft I85. Byvirtue of the wheel construction it is possible to rotate each of theshafts I82 and I85 only in the direction to wind the data-displaying webI81 thereon. Thus when the wheel race I81 is rotated in the direction ofarrow I84 it will draw ball I80 into the narrow end of slot I8I andaccordingly rotate shaft I82 to wind web I81, but when the race I81 isrotated oppositely to arrow I84 it will draw ball I80 into the wide endof slot I88 and hub I88 and shaft I82 are accordingly not rotated andthe web is not wound. Wheel I85 is oriented so as to rotate its shaft ina direction opposite to arrow I84 on shaft I 82 and hence the web I84can be unwound from shaft I82 by vir tue of wheel I85.

Each of the data-displaying devices I80 in the top of the case isidentical and further description is therefore unnecessary.

In using the apparatus forexplaining insurance and investment contractsto clients the sliding tape I10 is first adjusted by movement of knobI15 until the age designation I18 on the tape corresponding to the edgeof the client is near the left side of window I0. The web 40 is normallyin a position so that cut-outs I50 and I60 are out of sight within thecase and advertising matter may be displayed through windows I0 and II.In use the web is rotated until the data-displaying cut-outs I50 are inline with the age designation of the tape I10. This is accomplished byrotation of knobs ll or Ii. The knob llli is then turned until the firstcolumn of data in a group corresponding to theparticular contract orpolicy being discussed appears beneath the cut-outs III.

By then rotating knob 58 or knob ll web 4. may be advanced until overthe next age deslg-' nation on tape I'll. At this point the next columnof data in the group becomes visible through openings ISO in web 40.

At any time the detent 33 may be released and the entire upper portion 2of the case be rotated so as to bring window II and the correspondingdata of tape 10 around to the observer.

It is obvious that many modifications may be made in the apparatusillustrated and described without departing from the spirit of theinvention described.

We claim:

1. A device for rapidly displaying data comprising a case having awindow therein, an endless web mounted in said case for movement behindsaid window, said web having spaced openings therein, and anotherrelatively much longer web having two ends mounted for movement back andforth behind said first mentioned web for displaying data through theopenings in said endless web, and means for moving said webs.

2. A device for rapidly displaying related data comprising a case havingwindows on opposite sides thereof, a web mounted in said case formovement simultaneously behind the windows, said web being formed with aplurality of apertures visible through said windows, and a pair ofelongated webs for display through said aperture, each having datathereon, said last mentioned webs being mounted one behind each of saidwindows, and means for moving said last mentioned webs synchronously soas simultaneously to display related data through the openings of saidfirst web that are positioned behind said case windows.

3. A device for rapidly displaying related data comprising a case havingwindows on opposite sides thereof, a continuous web mounted in said casefor movement simultaneously behind the windows, said web being formedwith a plurality of apertures spaced so as to be visible through saidwindows, and a pair of elongated webs for display through said aperture,each having data thereon, said webs last mentioned being mounted onebehind each of said windows, means for moving said last mentioned webssynchronously so as simultaneously to display related data through theopenings of said first web that are positioned behind said case windows,and means for pivotally mounting said casing.

4. A device for rapidly displaying data comprising a case having awindow in opposite faces thereof, an endless web mounted in said casingfor movement across each of said window openings simultaneously,openings in said web spaced so as to be positioned some in alignmentwith one of said windows and others in alignment with the other of saidwindows, a display web having data at spaced intervals therealong fordisplay through said openings, a scale mounted for movement adjacent oneof said windows parallel to said webs, said scale having markingsthereon correlated with the spacings of data on said display web, andmeans for moving said endless web so as to position certain of theopenings thereon in alignment with markings on I said scale.

5. a device roirapidly displaying data comprising a case having parallelfaces, a window opening in each of said parallel faces, an outer -web1mounted in said casing for movement across each of said window openingssimultaneously. said outer web being formed with openings which arespaced so that certain openings appear adjacent one window when certainother openings appear adjacent the other window, means on the outside ofsaid case for moving said outer web, and a pair of inner webs each ofwhich is a number of times longer than said case mounted within the casefor movement adjacent the outer web, one inner web being substantiallyparallel with one window and the other substantially parallel with theother window, each of said inner webs being formed with designations fordisplay through said outer web, a pair of spools for each inner web, andmeans for simultaneously revolving said spools so as simultaneously tomove said inner webs.

6. A device for rapidly displaying data comprising a case havingparallel faces, a window opening in each of said parallel faces, anouter web mounted in said casing for movement across each of said windowopenings simultaneously, said outer web being formed with openings whichare spaced so that certain openings appear adjacent one window whencertain other openings appear adjacent the other window, means on theoutside of said case for moving said outer web, and a pair of inner webseach of which is a number of times longer than said case mounted withinthe case for movement adjacent the outer web, one inner web beingsubstantially parallel with one window and the otherv substantiallyparallel with the other window, each of said inner webs being formedwith designations for display through said outer web, a pair of spoolsfor each inner web, upon which the ends of the web are wound, gear meansfor communicating the motion of a spool of one web to a spool of theother web, and means for operating said gear means from the outside ofthe casing.

7. A device for rapidly displaying data comprising a case havingparallel faces, a window opening in each of said parallel faces, anouter web mounted in said casing for movement across each of said windowopenings simultaneously. said outer web being formed with openings whichare spaced so that certain openings appear adjacent one window whencertain other openings appear adjacent the other window, means on theoutside of said case for moving said outer web, and a pair of inner webseach of which is a number of times longer than said case a mountedwithin the case for movement adjacent the outer web, one inner web beingsubstantially parallel with one window and the other substantiallyparallel with the other window, each of said inner webs being formedwith designations for display through said outer web, a pair of spoolsfor each inner web upon which the ends of the web are wound, a firstgear means for communicating motion in like amounts to one of the spoolsof each of the inner webs, a second gear means for communicating motionin like amounts to the one of the spools of each of the inner webs, andmanually operable means for selectively driving said gear means so assimultaneously to move the inner webs.

8. A device for rapidly displaying data comprising a case havingparallel faces, a window openingin each of said parallel faces, an outerweb mounted in said casing for movement across each of said windowopenings simultaneously, said outer web being formed with openings whichare spaced so that certain openings appear adjacent one window whencertain other openings appear adjacent the other window, means on theoutside of said case for moving said outer web, and a pair of inner webseach of which is a number 01' times longer than said case mounted withinthe case for movement adjacent the outer web, one inner web beingsubstantially parallel with one window and the other substantiallyparallel with the other window, each of said inner webs being formedwith designations for display through said outer web, a pair of spoolsfor each inner web upon which the ends of the web are wound, a firstgear means for communicating motion in like amounts to one of the spoolsof each of the inner webs, a second gear means for communicating motionin like amounts to the other of the spools of inner web, a manuallyoperable means for said first and second gear means and a clutch forconnecting said first gear means to the manually operable means when thelatter is rotated in one direction and for connecting said second gearmeans to the manually operable means when the latter is rotated in theother direction.

9. A device for rapidly displaying data comprising a case havingparallel faces, a window opening in each 01 said parallel faces, anouter web mounted in said casing for movement across each of said windowopenings simultaneously, said outer web being formed with openings whichare spaced so that certain openings appear ad Jacent one window whencertain other openings appear adjacent the other window, means on theoutside of said case for moving said outer web, and a pair of inner webseach of which is a numher times longer than said case mounted within thecase for movement adjacent the outer web, one inner web beingsubstantially parallel with one window and the other substantiallyparallel with the other window, each 01' said inner webs being formedwith designations for display.

through said outer web, a pair of spools for each inner web upon whichthe ends of the web are wound, a first gear means for communicatingmotion in like amounts to one of the spools each of the inner webs,asecond gear means for communicating motion in like amounts to the otherspools of each of the inner webs, and a manually operable spindle forsaid first and second gear means for connecting said first gear means tothe spindle when the latter is rotated in one direction and forconnecting said second gear means to the spindle when the latter isrotated in the other direction.

10. A device for rapidly displaying investment or insurance datacomprising a case having windows in opposite sides thereof, a webmounted in said case for movement simultaneously behind the windows inopposite sides of the case said web being provided with apertures spacedalong the web so that certain apertures are visible through one windowwhen other apertures are visible through a window in the opposite sideof the case, a pair of webs of a length many times as; long as the case,one of said last mentioned webs having investment or insurance datathereon for display through the apertures of the first mentioned webvisible through one window and the other of said last mentioned webshaving different but related investment or insurance data thereon fordisplay through the apertures of the first mentioned web visible througha window on the opposite side of the case, and means for moving each ofsaid last mentioned webs synchronously in spaced relation so as tosimultaneously display the related investment or insurance data throughthe cooperating openings 01' the first mentioned web visible through thewindows on opposite sides of the case.

EDGAR R. CHAMPION.

61mm J. WOREL.

